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Year of the Snake - Shop Now
Men's Trunk - Naturals / I Don't Think Theysaurus Men's Trunk - Naturals / I Don't Think Theysaurus Men's Trunk - Naturals / I Don't Think Theysaurus Men's Trunk - Naturals / I Don't Think Theysaurus Men's Trunk - Naturals / I Don't Think Theysaurus Men's Trunk - Naturals / I Don't Think Theysaurus
4.9
Rated 4.9 out of 5 stars
175 Reviews

I Don't Think Theysaurus Men's Trunk - Naturals

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  • Star IconSofter than bamboo and melted butter
  • Star Icon Made from 100% traceable TENCEL Modal fibers
  • Star Icon Best-selling style with contoured pouch

Choose Size: ${ chosen_size_abbreviated }

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Knobby Undie Club members save 15% on most products. Discount will automatically be applied once the item is added to your bag. To add another subscription, head over to your member portal.

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Same day dispatch if you order before 1pm AEST

Hidden in plain sight... Is that a Stegosaurus in your pants or are you just happy to see me?

Camouflage is a defence or tactic used to disguise a species' appearance so they blend with their surroundings & remain stealthy AF. This is vital for survival & also ambushing prey. It works both ways!

Knobby has decided to put a prehistoric twist on it!

We’ve hidden 4 dinosaurs in our latest drop! Can you spot what species of dinosaur lurk in our colourful camo design ‘I-Don’t-Think Theysaurus’? Let’s take a look & brush up on your Dino knowledge while we are at it!
  • TENCEL Modal - Derived from natural raw wood
  • Naturally soft and smooth to the touch
  • Naturally dry sensation with moisture control
  • Certified carbon-neutral with traceable technology
  • Lightweight 160 gsm for versatility and comfort
  • 4cm band with plush inner microfleece
  • Tagless with printed care label
  • Made ethically and sustainably in China
  • THE STYLE: This best-selling style is the perfect all-rounder! Completely rebuilt and improved with a contoured pouch and flatlock seams for frictionless comfort. An inseam length of 15cm to reduce ride-up and eliminate cheeky chafe.
  • THE FIT: Each of our undies are made to a global standard. They are true-to-size, so order whatever size you would typically order for shorts. See our size guide.
  • THE MODEL: ${ chosen_product_model_description }

Each pair of Knobbys will arrive in a custom designed, certified kraft paper package or a sealed paper pouch and postage bag made with cornstarch, which is 100% compostable!

All our Australian printed papers and cardboards are recyclable, FSC certified and made carbon neutral, because we give a shit.

Our mission is to be the most sustainable underwear brand in the world.

FREE Standard Domestic Shipping for orders over $100

$9.50 Standard Domestic Shipping for orders under $100

Order before 1pm AEST on weekdays and we'll dispatch the same day!

Returns

Get in touch with our Support Ninjas within 30 days of receiving your Knobbys if you'd like to organise an exchange, refund, coupon or credit! More details

Men's Trunk - Naturals / I Don't Think Theysaurus
I Don't Think Theysaurus Men's Trunk - Naturals | ${ chosen_size_abbreviated } ${ chosen_product_price | money }
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Unique
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Unbeatable
Comfort

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Sustainably
Made

Step into a world of amazing underneaths that are ridiculously good and sustainably comfy

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Star Icon Exclusive Unique Design

Hidden in plain sight... Is that a Stegosaurus in your pants or are you just happy to see me? Camouflage is a defence or tactic used to disguise a species' appearance so they blend with their surroundings & remain stealthy AF. This is vital for survival & also ambushing prey. It works both ways! Knobby has decided to put a prehistoric twist on it! We’ve hidden 4 dinosaurs in our latest drop! Can you spot what species of dinosaur lurk in our colourful camo design ‘I-Don’t-Think Theysaurus’? Let’s take a look & brush up on your Dino knowledge while we are at it!

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Star Icon Comfort & Fit

Experience unmatched comfort with our products:

  • Star IconSofter than bamboo and melted butter
  • Star Icon Made from 100% traceable TENCEL Modal fibers
  • Star Icon Best-selling style with contoured pouch

We've designed it specifically for a snug fit that's perfect for everyday wear.

Made with Recycled Ocean Bound Plastic Bottles
Star Icon Sustainability

In a world striving for sustainability, our products stand out. Made from an innovative eco-friendly bottle blend fabric, they not only offer comfort but also reflect a commitment to a greener planet.

The Design Details
"I Don't Think Theysaurus" by Knobby (Artist Inhouse / Phillip Ramskill)

Get The Full Collection

Men's Trunk / I Don't Think Theysaurus
4.9
Rated 4.9 out of 5 stars
3,538 Reviews

I Don't Think Theysaurus

Men's Trunk
$33

$25 Members

Men's Long Leg / I Don't Think Theysaurus
4.9
Rated 4.9 out of 5 stars
1,137 Reviews

I Don't Think Theysaurus

Men's Long Leg
$33

$25 Members

Men's Brief - Naturals / I Don't Think Theysaurus
4.8
Rated 4.8 out of 5 stars
140 Reviews

I Don't Think Theysaurus

Men's Brief - Naturals
$34

$27 Members

Women's Bralette / I Don't Think Theysaurus
4.9
Rated 4.9 out of 5 stars
511 Reviews

I Don't Think Theysaurus

Women's Bralette
$33

$29 Members

Customer Feedback

4.9
Rated 4.9 out of 5 stars
Based on 175 reviews
Total 5 star reviews: 165 Total 4 star reviews: 8 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 2
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175 reviews
  • Brittany W.
    Verified Buyer
    Rated 5 out of 5 stars
    1/6/25
    Topping the Christmas wish list!

    Got the sunshine ranch gift pack for me and my partner. Incredible design! We love it immensely. Always the first pick from the undie draw.

  • Ethan
    Verified Buyer
    Rated 5 out of 5 stars
    1/4/25
    No fuss undies

    Great, comfortable undies that don’t move when you are!

    Awesome for running and training in.

  • Marree G.
    Verified Buyer
    Rated 5 out of 5 stars
    12/25/24
    Too cute...I mean....manly

    Hubby loves how they feel. Arrived today (with the rest) and straight in the wash. Here's my "Xmas Day" washing photo as hubby won't agree to a photo in his Knobbys :(

  • Marree G.
    Verified Buyer
    Rated 5 out of 5 stars
    12/25/24
    What more can I say

    I mean, you should really try Knobbys. They're great (so my husband says)

  • Teresa D.
    Verified Buyer
    Rated 5 out of 5 stars
    12/25/24
    Go Natural Down Under

    These natural Knobbies add a luxurious layer of comfort against your skin. Feel like silk

    Pattern & colours fun for summer

  • Sally S.
    Verified Buyer
    Rated 5 out of 5 stars
    11/15/24
    Great pattern

    Love the soft cotton feel of this newer fabric. Fit perfectly.

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